2026 Chicago Marathon Elite Field: Amos Kipruto
The 2022 London champion has been third and then second in his two Chicago starts, and he comes back as the sixth-fastest marathoner in history after running 2:01:39 in London in April.
Elite Runners
2026 Chicago Marathon Elite Field: Hawi Feysa
The Ethiopian took more than two minutes off her best to win Chicago last year in 2:14:57. She returns on Sunday to defend the title against Brigid Kosgei, who finished ahead of her in Abu Dhabi in 2023 and in Tokyo in March.
Elite Runners
2026 Chicago Marathon Elite Field: Des Linden
The 2018 Boston champion stepped away from professional marathoning in April 2025. On Oct. 11 she is back on an elite start line, this time as part of her build toward a first 100-miler.
Elite Runners
The Chicago Marathon Lottery for 2027 Is Now Open
Runners have until Oct. 29 to apply for the Oct. 10, 2027 race, with drawing results on Dec. 8 and the U.S. entry fee holding at $250.
Race Coverage
Chicago Marathon Pace Calculator: Your Mile-by-Mile Race Plan
An interactive pace plan for every mile of the Chicago Marathon, built by mapping every turn, bridge and change in elevation on the course, calibrated against thousands of performances from the last four races, and adjusted for race-day weather.
Michael Doyle
Does Fat Adaptation Make Carbs Optional?
Triathletes who spent six weeks on a very-low-carb diet still lasted longer when they took in a small amount of carbohydrate. Here’s what that means for your long-run fueling.
Run Long Run Healthy
Stop Chasing 180: Why Running-Form Rules Are Less Reliable Than You Think
A new review finds the evidence behind foot strike and cadence advice is far messier than the rules suggest. Here’s when changing your form makes sense, and when it doesn’t.
Run Long Run Healthy
Ozone Can Cost You in Hard Workouts: What a New Study Found in Endurance Athletes
In a study of 20 highly trained athletes, ozone left steady efforts alone but cut maximal performance and made breathing harder. Here’s when to pay attention to the air quality forecast.
Run Long Run Healthy
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